{"product_id":"fanuc-a20b-3900-0303","title":"FANUC A20B-3900-0303","description":"\u003ch3\u003eA20B-3900-0303 FANUC FROM\/SRAM Memory Module\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eA20B-3900-0303\u003c\/strong\u003e is a \u003ca href=\"https:\/\/reacocnc.com\/collections\/fanuc-pcbs\" target=\"_blank\" title=\"Buy \u0026amp; Repair Fanuc PCBs for Reliable Industrial Automation\" rel=\"noopener\"\u003eFANUC PC board\u003c\/a\u003e \/ memory module, commonly described as a \u003cstrong\u003eFROM\/SRAM memory module\u003c\/strong\u003e. It is used in compatible FANUC CNC control systems for memory-related functions, system data storage, SRAM data support, and CNC operation depending on the original system configuration.\u003c\/p\u003e\n\u003cp\u003eThis model is supplied as a \u003cstrong\u003eFANUC FROM\/SRAM memory module\u003c\/strong\u003e, not a complete CNC control system. Correct module number confirmation, CNC system compatibility checking, memory configuration matching, SRAM data backup, and professional testing are important before replacement.\u003c\/p\u003e\n\u003ch4\u003eWorldwide Shipping \u0026amp; REACO CNC Service\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorldwide Shipping:\u003c\/strong\u003e We can ship worldwide by DHL, UPS, FedEx, or other available logistics channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Handling:\u003c\/strong\u003e In-stock items can usually be shipped within 1-2 working days after payment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% Tested Before Delivery:\u003c\/strong\u003e Each qualified memory module is tested or checked before shipment. Product photos or a test video can be sent before delivery when required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eREACO Warranty:\u003c\/strong\u003e New or refurbished products usually include a 1-year warranty, and used 90% new products usually include a 3-month warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Technical Support:\u003c\/strong\u003e Our team can help with basic model confirmation, memory module matching, and replacement guidance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Information\u003c\/h4\u003e\n\u003ctable cellpadding=\"8\" cellspacing=\"0\" border=\"1\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFANUC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA20B-3900-0303\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlternative Model\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA20B39000303\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePC Board \/ Memory Module \/ FROM SRAM Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMemory Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFROM \/ SRAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCategory\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFANUC CNC Memory Module \/ FROM SRAM Module \/ System Memory Component\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFANUC CNC System Repair, Memory Module Replacement, SRAM Data Support, and Machine Maintenance\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHandling Time\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWithin 1-2 working days after payment, if in stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShipping Method\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDHL \/ UPS \/ FedEx\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEstimated Delivery Time via DHL\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAsia: 1-3 business days\u003cbr\u003eEurope: 2-4 business days\u003cbr\u003eNorth America: 2-4 business days\u003cbr\u003eSouth America: 3-6 business days\u003cbr\u003eMiddle East \u0026amp; Africa: 3-6 business days\u003cbr\u003eOceania: 2-5 business days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNew \/ Refurbished: 1-Year warranty\u003cbr\u003eUsed 90% New: 3-Month warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter Description\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eA20B-3900-0303\u003cbr\u003eA20B39000303\u003cbr\u003ePC Board\u003cbr\u003eMemory Module\u003cbr\u003eFROM\/SRAM\u003cbr\u003eFANUC CNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eService\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTested or checked before delivery. Product photos or test video can be sent before shipment.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePacking\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAnti-static protective packing and carton packing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eProduct Application\u003c\/h4\u003e\n\u003cp\u003eThe FANUC \u003cstrong\u003eA20B-3900-0303\u003c\/strong\u003e memory module is mainly used for compatible FANUC CNC control system repair and maintenance. It may be required when the original memory module is damaged, unstable, missing, or causing CNC boot, system memory, SRAM, data storage, or operation-related problems.\u003c\/p\u003e\n\u003cp\u003eBecause this is a memory-related CNC component, replacement should be handled carefully. Before replacement, please confirm the original module number, CNC system model, FROM\/SRAM configuration, machine data backup status, and system compatibility.\u003c\/p\u003e\n\u003ch4\u003eQuality Control and Testing\u003c\/h4\u003e\n\u003cp\u003eFor FANUC FROM\/SRAM memory modules, careful checking is very important before shipment because memory module condition may directly affect CNC startup, system data storage, parameter retention, SRAM data, and machine operation. REACO CNC checks qualified products carefully and can provide real product photos or a test video before delivery when required.\u003c\/p\u003e\n\u003cp\u003eOur goal is to help customers receive reliable FANUC CNC spare parts with clear product information, careful inspection, responsive after-sales support, and practical technical assistance.\u003c\/p\u003e\n\u003ch4\u003eCompatibility Confirmation\u003c\/h4\u003e\n\u003cp\u003eBefore ordering, please confirm that the full module number on your original memory module is \u003cstrong\u003eA20B-3900-0303\u003c\/strong\u003e. Similar FANUC memory modules may have different capacities, hardware versions, SRAM configurations, CNC system compatibility, or software requirements.\u003c\/p\u003e\n\u003cp\u003ePlease back up your machine data before replacing memory-related CNC components, including parameters, programs, PMC ladder, macro variables, pitch compensation data, and SRAM data if applicable. If you are not sure whether this FANUC FROM\/SRAM memory module is suitable for your machine, please send photos of the original module label, CNC system model, CPU board model, software version if available, and alarm information. REACO CNC can help check the details before purchase.\u003c\/p\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003ch4\u003eQ: What is A20B-3900-0303?\u003c\/h4\u003e\n\u003cp\u003eA20B-3900-0303 is a FANUC PC board \/ memory module, commonly described as a FROM\/SRAM memory module.\u003c\/p\u003e\n\u003ch4\u003eQ: Is A20B-3900-0303 a complete CNC control system?\u003c\/h4\u003e\n\u003cp\u003eNo. A20B-3900-0303 is a memory module component, not a complete CNC control system.\u003c\/p\u003e\n\u003ch4\u003eQ: What memory type does A20B-3900-0303 use?\u003c\/h4\u003e\n\u003cp\u003eThis model is described as a FROM\/SRAM memory module.\u003c\/p\u003e\n\u003ch4\u003eQ: Can this module be used for FANUC CNC system repair?\u003c\/h4\u003e\n\u003cp\u003eYes. This memory module can be used for compatible FANUC CNC system repair after confirming the original module number, CNC system model, and machine configuration.\u003c\/p\u003e\n\u003ch4\u003eQ: Should machine data be backed up before replacing this memory module?\u003c\/h4\u003e\n\u003cp\u003eYes. Before replacing a FANUC memory module, it is strongly recommended to back up parameters, programs, PMC ladder, macro variables, pitch compensation data, and SRAM data if applicable.\u003c\/p\u003e\n\u003ch4\u003eQ: Can REACO CNC test this FANUC memory module before shipment?\u003c\/h4\u003e\n\u003cp\u003eYes. REACO CNC tests or checks qualified memory modules before delivery. Product photos or a test video can be sent before shipment when required.\u003c\/p\u003e\n\u003ch4\u003eQ: What warranty does REACO CNC provide?\u003c\/h4\u003e\n\u003cp\u003eFor new or refurbished products, REACO CNC usually provides a 1-year warranty. For used 90% new products, the warranty is usually 3 months. The final warranty term depends on the quotation and order condition.\u003c\/p\u003e\n\u003ch4\u003eQ: Can you help confirm compatibility before purchase?\u003c\/h4\u003e\n\u003cp\u003eYes. Please send the original module photos, full module number, CNC system model, CPU board model, software version if available, and alarm details. We will help check whether this model is suitable for your machine.\u003c\/p\u003e\n\u003ch4\u003eQ: Do you also provide FANUC memory module replacement support?\u003c\/h4\u003e\n\u003cp\u003eYes. \u003ca href=\"https:\/\/reacocnc.com\/\" target=\"_blank\" title=\"Reliable Buy \u0026amp; Repair industrial automation parts - REACO CNC\" rel=\"noopener\"\u003eREACO CNC\u003c\/a\u003e provides FANUC memory module sales and replacement support. If your original module is faulty, you can \u003ca href=\"https:\/\/reacocnc.com\/pages\/contact-us\" target=\"_blank\" title=\"Contact Us for Reliable industrial automation solutions - REACO CNC\" rel=\"noopener\"\u003econtact us\u003c\/a\u003e for replacement options.\u003c\/p\u003e","brand":"REACO CNC","offers":[{"title":"Brand New","offer_id":48668712239319,"sku":"A20B-3900-0303-new","price":323.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/3784\/4183\/files\/Buy_A20B-3900-0303_Fanuc_memory_module.jpg?v=1779779271","url":"https:\/\/reacocnc.com\/products\/fanuc-a20b-3900-0303","provider":"REACO CNC","version":"1.0","type":"link"}